ABB ACS880 Firmware Manual page 435

No. Name/Value
Advanced
Advanced Standstill Advanced Standstill ID run.
99.14 Last ID run
performed
None
Normal
Reduced
Standstill
Advanced
Advanced Standstill
99.15 Motor polepairs
calculated
0...1000
99.16 Motor phase order
U V W
U W V
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Description
Advanced ID run. Guarantees the best possible control
accuracy. The ID run can take a couple of minutes. This mode
should be selected when top performance is needed across
the whole operating area.
Note: The driven machinery must be de-coupled from the
motor because of high torque and speed transients that are
applied.
WARNING! The motor will run at up to approximately
50...100% of the nominal speed during the ID run.
Several accelerations and decelerations are done.
ENSURE THAT IT IS SAFE TO RUN THE MOTOR BEFORE
PERFORMING THE ID RUN!
This selection is recommended with AC induction motors up
to 75 kW instead of the Standstill
• the exact nominal ratings of the motor are not known, or
• the control performance of the motor is not satisfactory
after a Standstill ID run.
Note: The time it takes for the
complete varies according to motor size. With a small motor,
the ID run typically completes within 5 minutes; with a large
motor, the ID run may take up to an hour.
Shows the type of ID run that was performed last. For more
information about the different modes, see the selections of
parameter 99.13 ID run requested.
No ID run has been performed.
Normal ID run.
Reduced ID run.
Standstill ID run.
Advanced ID run.
Advanced Standstill ID run.
Calculated number of pole pairs in the motor.
Number of pole pairs.
Switches the rotation direction of motor. This parameter can
be used if the motor turns in the wrong direction (for example,
because of the wrong phase order in the motor cable), and
correcting the cabling is considered impractical.
Notes:
• Changing this parameter does not affect speed reference
polarities, so positive speed reference will rotate the motor
forward. The phase order selection just ensures that
"forward" is in fact the correct direction.
• After changing this parameter, the sign of encoder
feedback (if any) must be checked. This can be done by
setting parameter 90.41 Motor feedback selection
Estimate, and comparing the sign of
control to 90.10 Encoder 1 speed
speed). If the sign of the measurement is incorrect, the
encoder wiring must be corrected or the sign of
Motor gear numerator reversed.
Normal.
Reversed rotation direction.
Parameters 435
ID run if
Advanced Standstill ID run to
to
90.01 Motor speed for
(or 90.20 Encoder 2
90.43
Def/FbEq16
6
7
None
0
1
2
3
6
7
0
1 = 1
U V W
0
1